Anger is an expression of fear, if you let go of all your fears you will never be angry. There is no reason to be angry about anything.

LOL. You're either an idiot or a hypocrite. Pick your poison.

I used nothing as a generalization of my anger in comparison to other people. Like you, I am imperfect, so I may have an occasional bout of anger for a few seconds before I am able to rationally think about the situation and see why I should never have been angry in the first place, but this is all that my anger ever consists of, it never lasts for more than a few seconds. So in regards to the topic, there is nothing that I am still angry about, nor can I think of anything that will make me angry for a substantial period of time, therefore I put nothing.

People make me angry... Judgemental people, people who are mean for no reason, people who get awesome things or even little things they don't deserve... When people who DO deserve awesome things DON'T get what they deserve...

Life's a lot like the FIFA series of video games; No matter how good you are, or how much you try, you'll always be beaten by a c**t.

Inconvenience and annoyance.
Bigger things are people acting like idiots, especially when they go about it in a loud or personally physical way, people not taking things seriously enough/taking things too seriously, people seeking attention where it isn't wanted, and people who think that I can read minds.
On that last one, I'd prefer if people would just come out and say what they have on their mind. If you have something to ask me, don't beat around the bush, especially over a communication medium that makes it difficult to discern emotion.